GRX-4 is a type of protein that plays a crucial role in cellular processes. It is part of the glutaredoxin family, which helps maintain the balance of glutathione, an important antioxidant in the body. This protein is involved in regulating oxidative stress and protecting cells from damage. Researchers study GRX-4 to understand its functions in various biological systems, including its potential impact on diseases related to oxidative stress. By exploring how GRX-4 interacts with other molecules, scientists aim to uncover new therapeutic targets for conditions such as cancer and neurodegenerative disorders.